Rio Oso (USA) Horse
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About
Rio Oso is a four-year-old bay filly bred in the United States, by Long River out of Bear Moon. She races for trainer Kelly Lynn Deiter and is owned by Cathy Denelsbeck. In nine starts she has captured one victory, placed second once and earned three third‑place finishes, accumulating $31,013 in earnings. Her most recent outing was at Charles Town on 23 October 2026, where she came home 5th of 5. She last won at Charles Town on 26 July 2026.
Race Record
| Event Summary | Runner Stats | Rank |
|---|---|---|
| Charles Town 23-Oct-26 1408m FAST Flat, SP: 15/2 | Nomar Bueno Arroyo 56.2kg | 5 (5) |
| Charles Town 03-Oct-26 1308m GOOD Flat, SP: 12/1 | Edgar Villasmil 56.2kg | 3 (8) |
| Delaware Park 29-Aug-26 1207m SOFT R8 Race 8 (of $20,882) Barrier 1, Winning Time: 01:13.900, SP: 21.00 pressed the pace along the rail, dropped back into the turn and gave way. 1st Sweet Summer Love ( M Fernandez 121 , Cd 114 ) 2nd Let 'er Sizzle ( J Radosevich 118 , Cd 111 ) 0.75L 3rd Panchita ( R Rodriguez 118 , Cd 111 ) 1.25L 8th Rio Oso ( E Villasmil 125 ) 11.80L See full results | E Villasmil 56.7kg 11.80L | 8 (8) |
| Delaware Park 09-Aug-26 1207m FIRM R2 Race 2 $708 (of $26,886) Barrier 7, Winning Time: 01:13.480, SP: 17.00 stayed outside horses, floated five wide leaving the turn and weakened. 1st Racquel Blue ( J Hernandez 123 ) 2nd Final Engagement ( A Cruz 120 ) 3.50L 3rd Miss Mo Town ( R Silvera 120 ) 2.00L 7th Rio Oso ( E Villasmil 125 ) 8.80L See full results | E Villasmil 56.7kg 8.80L | 7 (7) |
| Charles Town 26-Jul-26 1308m FIRM R9 Md $18,503 (of $29,370) Barrier 5, Winning Time: 01:22.610, SP: 9.00 prompted the pace two wide, three wide even upper, kicked away. 1st Rio Oso ( E Villasmil 126 ) 2nd Starship Polaris ( V Rodriguez 126 ) 5.25L 3rd Jane N Margo ( N B Arroyo 126 ) 2.00L See full results | E Villasmil 57.2kg | 1 (6) |
| Delaware Park 29-May-26 1106m SOFT R9 Md $2,528 (of $25,284) Barrier 5, Winning Time: 01:07.380, SP: 8.50 , rated back off the top pair soon after the start, stalked those two, eased out leaving the turn and finished evenly. 1st Izzy's Rock Star ( P Lopez 119 ) 2nd Adios Senoritas ( M Chuan 119 ) 0.30L 3rd Rio Oso ( E Villasmil 124 ) 1.50L See full results | E Villasmil 56.2kg 1.50L | 3 (6) |
| Charles Town 25-Apr-26 1308m GOOD R5 Md $5,739 (of $28,693) Barrier 6, Winning Time: 01:22.310, SP: 26.00 broke alertly, prompted the pace along the rail around the first turn, sent to the attack inside leaving the quarter pole, stuck a head in front turning into the lane, no match from the sixteenth marker, chased on late. 1st Fox Fifty Eight ( M Santaella 124 ) 2nd Rio Oso ( E Villasmil 126 ) 3.00L 3rd Sperry Chalet ( A Mawing 124 ) 2.75L See full results | E Villasmil 57.2kg 3.00L | 2 (10) |
| Charles Town 12-Apr-26 1308m Flat, SP: 8/1 | Edgar Villasmil 57.2kg | 3 (8) |
| Charles Town 29-Mar-26 905m Flat, SP: 9/2 | Justin Lewis 57.2kg | 5 (7) |